Tema Metropolis On The Forecourt TMA. Thousands of workers in the Tema Metropolis converged on the forecourt of the Metropolitan Assembly, TMA, this morning to join their counterparts in Accra for the organized labour demonstration. Participating Unions include the Tema Oil Refinery Workers, the District Council of Labour, the Marine and Dock Workers as well as the Petroleum and Chemical Workers. About 20 buses conveyed the aggrieved workers from Tema to the Obra Spot in Accra. Source: GBC